Hardware for concrete forms



April 9, 1946.

R. L. GEER HARDWARE FOR CONCRETE FORMS Filed July 26, 1944 2Sheets-Sheet 1 was April 1946; Y R. L. GEER 2,398,219

HARDWARE FOR CONCRETE FORMS Filed July 26, 1944 2 Sheets-Sheet 2 F [IQ".

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Patented Apr. 9. 1946 UNITED- STATES PATENT OFFICE 2,398,219 HARDWAREFOR CONCRETE FORMS Russell L.- Geer, Grand Island, Nebr.

1944, Serial No. 546,644 (o1. 25 1s1) Application July 26,

1 Claim.

The invention relates to hardware for concrete forms, and moreparticularly to such hardware adapted for repeated use on forms whichmay be set up for pouring a concrete wall or column or the like and thendemounted for reuse.

A general object of the invention is to provide novel hardware orfittings which may he used repeatedly with demountable concrete formsand in the construction of a wide variety of sizes and shapes of suchforms without damage to either the hardware or the parts of the forms.

More specifically, it is an object of the invention to provide hardwareof simple and inexpensive construction and adapted to use in providing across connection between opposed pairs of demountable concrete forms.

Another object of the invention is to provide a novel fitting of thebracket type for use as a connection between a stud or timber and a tierod.

Other objects and advantages will become apparent in the followingdescription and from the accompanying drawings in which:

Figure l is a perspective view of a fitting embodying the invention in apreferred form.

Fig. 2 is a developed plan view of a preferred type of blank from whichthe fitting of Fig. 1 may be formed.

Figs. 3 and 4 are, respectively, perspective views of a preferred typeof tie rod and an assembly of the tie rod with Fig. 1.

Figs. 5 and 6 are, respectively, perspective and plan views showing theadaptation of the inven tion to demountable concrete wall forms.

While the invention is susceptible of various modifications andalternative constructions, I have shown in the drawings and will hereindescribe in detail the preferred embodiment, but it is to be understoodthat I do not thereby intend to limit the invention to the specific formdisclosed, but intend to cover all modifications and alternativeconstructions falling within the spirit and scope of the invention asexpressed in the appended claims.

In the exemplary adaptation of the illustrated embodiment, the hardwarewhich embraces the invention is shown in its application to demountableforms for concrete walls. The various struc tural features andillustrated adaptations are suggestive of the advantages and versatilityby which the invention is characterized.

Referring particularly to Figs. 1 to 4, inclusive, of the drawings, theexemplary fitting or bracket I!) (Fig. 1) is desirably formed integrallyfrom a sheet metal blank H of generally rectangular fittings such asthat shown in form, shown in Fig. 2. Although the relative dispositionsof the various formed parts of the fit ting l' 0 might be varied to fitmembers of different shapes, t .e present form has been found quiteuniversal in its adaptations the form shown, the blank II is cut at thetwo ends of a line l2 and bent along the line l2 and a line M to form asubstantially U-shaped channel A having opposed sides or legs [5 and I6joined by a connecting portion H. A second substantially U-shapedchannel B is formed by bending ears I?! and I9 away from one side of theoriginally formed channel A along lines 20 and 2!. By forming thechannels in this manner, their longitudinal axes are substantiallyperpendicular and they open outwardl in substantially perpendiculardirections. The form is additionall characterized by the fact that thechannel A includes the entire length of the blank; while the channel'Bincludes the entire width of the blank, but only a portion of thelength. Also, the side [5 of the channel A comprises the connectingportion of the channel B.

In forming the channel A, having sides l5 and I6 and the connectingportion l1, it is desirable that the radii 23 and 24 of the bendsconnecting the respective side portions to the connecting portion bedifferent and that the radiu 24 connecting the side IE to the connectingportion ll be greater than the radius 23 which connects the side I 5 tothe connecting portion. The side l6 and the connecting portion l1 areapertured at 25 and 26 respectively, for the passage of nails utilizedin holding the fitting in place during Also, ears l8 and I9 have alignedopenings 27 and 28 through which a pin or nail, such as 29 (Fig. 4.),extends for connecting the fitting Hi to the end of a tie rod 30.

In order to facilitate removal of the tie rods, such as 30, from aconcrete wall or structure after the concrete has been poured and is setso that the forms may be removed, the tie rod is tapered from end toend. A pair of apertures 32 and a series of apertures 33 in spacedrelation near the ends of the tie rod determine the thickness of thewall between the forms. The apertures 32 are desirably spaced half thedistance of that between the apertures 33, so that for each of the wallthickness settings determined by the apertures 33, a closer setting maybe made by selection of one of the apertures 32.

to demountable concrete wall forms. Generally considered, theillustrative wall forms are made up in sections such as 34, 35, 36, 31,38 and 39 removably joined together or to comer post sections 40 and 42by tongue and groove joints such as 43. Each of the sections comprisesan inner surfacing panel 44 of preselected dimensions reenforced bydiagonally disposed backing strips 45. Each section is also additionallyreenforced at its edges by studs 46. In the assembly of the sections forone side of a wall form, adjacent sections are secured together andsections are secured to adjacent corner posts by bolts 41 extendingthrough the adjacent stud or through the corner post and an adjacentstud.

To provide for the accommodation of the fittings ID to the studs 46, oneorboth of the studs 46 are set back from the edges of their respectivesections to provide a space between adjacent studs which is sufiicientto accommodate the thickness of the side l6 of the fitting. Also theouter edges 48 of the studs 46 are desirably beveled adjacent the cornerof the fitting which has the larger radius 24. The larger radius andadjacent beveled comer on the studs limits the space required by thefittings at the corners and permits fittings to be closely associated atthe same level without interference as at the inside corner illustratedin Fig. 5. Thus, it will be understood that the channel A of the fittingl fits over and grips the stud 46 with the side l6 extending into aspace between adjacent studs.

The form sections have openings in predetermined spaced relation throughwhich the tie rods 30 extend. The placing of the fittings I0 is selectedto conform to the spacing of the tie rods, so that the ends of the tierods extend along or through the channel formed by the ears l8 and I9.Dropping nails into place through the alined openings 21 and 28 and theears l8 and i9 and selected openings 32 and 33 in the tie rodsdetermines the spacing of the opposed wall form sections and thethickness of the wall. After use, the fittings ID are removed from thestuds, the tie rods 30 are driven from the poured wall, and the formsdisassembled. All of the parts, including the fittings l0, may be usedand reused in the same or different types of forms and in similar ordifferent positions in the forms.

I claim as my invention:

A fitting of the type described, comprising a single generallyrectangular metal plate bent into U-shapc to define a first channel withthe side walls of the U of substantially equal length, the lateralportions of one side wall being bent outward toward each other intosubstantially parallel opposed relation to define a second channeltherebetween lying at right angles to the first, one of said channelsbeing dimensioned to receive a timber of standard dimensions to whichthe fitting is to be secured and at least one wall of said channel beingapertured for the passage of fasteners into a timber embraced by thesame, and the side walls of the other of said channels having alignedapertures therein for the reception of a tie rod holding pin or thelike.

RUSSELL L. GEER.

